Wrench.



6 Patented lan. 29, |901.

R.-.l. STROUD.

W R E N C H (Application led July 11, 1900.)

2 Sheets-Sheet I.

(No Model.)

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Wimesses: 58,

Patented 1an. 29, |991.

R. J. STROUD.

WRENCH.

(Application 1e`d July 11, 1900.)

2 Sheets-Sheet 2.

(No Model.)

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wimesses m ML ,W m fm. m 9. w4 M Z gm @WMI-w ROBERT JOHN STROUD, OFMILFORD BAY, CANADA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 666,890, dated January29, 1901.

Application filed July 11, 1900. Serial No. 23,219. xNo model.)

T0 all whom, t may concern:

Be it known that I, RoBERrJoHN STROUD, a subject of Her Majesty theQueen of Great Britain, residing at Milford Bay, county of Muskoka,Province of Ontario, Canada, have invented certain new and usefulImprovements in Wrenches; and I do hereby declare that the following isa full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in combined nut and pipe wrenches,and the primary object in View is the provision of a simple and ecientimplement capable of use on square and cylindrical objects of differentsizes.

A further object is to provide an improved construction by whichinterchangeable jaws maybe accurately fitted to permanent parts of theimplement and securely held in proper operative and adjustable relation.

A further object is to provide an attachment that can be applied easilyand quickly to the end of a permanent part of the wrench for use on workwhere side jaws are not available, such attachment having adjustable andreversible jaws to adapt the same to work of different sizes.

Further objects and advantages of the invention will appear in thecourse of the subjoined description,and the novelty in the combinationof elements and in the construction and arrangement of parts will bedefined by j the claims.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of the wrench bar with my improvedattachment applied thereto. Fig. 2 is an edge view thereof. j dinalsectional view taken in the planeof the dotted line 3 3 on Fig. l. Fig.4 is a detail perspective view of the adjustable and reversible jawforming a part of the attachment. Fig. 5 is a detail view in perspectiveof the fixed jaw, alsov forming a part of the attachment. Fig. 6 is aside elevation of the wrench equipped with the pipe-gripping plates.Fig. 7 is alongitudinal section of the wrench shown by Fig. 6. Fig. 8 isa detail perspective View of the wrench-bar and the permanent jaw.

Fig. 9 is a detail perspective view of one pipegripping plate. Fig. 10is a detail view of a nut-gripping plate which may be usedinterchangeably with the plate of Fig. 9. Fig. 11 is adetailof ahandle-bar adapted for use in connection with the wrench-bar.

The same numerals of reference are used to indicate like parts in eachof the several iigures of the drawings.

The numeral l0 designates the bar or shank of my improved wrench, whichis provided at one end with the permanent jaw Il, the latter beingpreferably made as an integral part of the shank or bar and extending atright angles therefrom. This bar is provided with a screw-thread l2 fora part of itslength, and in one end of the bar is the transversebolthole 13, a latch-hole 14 being formed in said shank at a suitabledistance from the bolthole. This bolt-hole and the latch-hole are usedin connection with certain parts of the attachment, as will behereinafter described. The permanent jaw ll of the wrench is provided inits side faces with the dovetail grooves 15, and on the inner face ofthis jaw is the longitudinal groove 16.

17 designates the movable jaw, which is constructed to fit slidably onthe bar or shank l0 and to extend outwardly therefrom, so as to bedisposed in opposing relation to the permanent. jaw l1, said slidablejaw being removable from one end of the shank or bar lO. This slidablejaw is provided on the face which opposes the permanent jawwith alongitudinal groove 18, and in its side faces are formed the dovetailgrooves 19. It will therefore be seen that the permanent and slidablejaws are provided in their opposing faces With longitudinal grooves andthat each jaw has two dovetail grooves in its side faces, wherebyinterchangeable plates are adapted for connection with said jaws toenable the implement to be used on square or cylindrical work, such asnuts and pipes, respectively. The slidable jaw is moved on the bar orshank, as well as held in place thereon, by an adjusting -sleeve or nut20, having threaded engagement with said shank or bar and a loose orswivel connection 2l with a part of said slidable jaw.

A pair of pipe-gripping plates 22 23 are constructed for application tothe opposing faces of the grooved jaws 1l 17, respectively. Each IOOpipe-gripping plate is provided with a serrated working surface, withthe pair of lugs 24 at its side edges and with a longitudinal rib 26 onits back or neutral face. The plate 22 is fitted to the permanent jaw 11for the rib 26 and the lugs 24 to occupy the longitudinal groove 16 andthe dovetail grooves 15, respectively, of the permanent jaw 1l, whilethe other plate 23 is adj usted for its rib and the two lugs to enterthe groove 18 and the side grooves 19 of the slidable jaw 17. Each platehas interlocking connection with its proper jaw, and it is held firmlythereon by a bolt 27, the latter passing through the lugs of the plateand the jaw, one end of said bolt having a head 27' and its other endreceiving a winged nut 27" llt is evident that the nut and bolt may beremoved for the purpose of removing the plate from the jaw. As shown byFigs. 6 and 7 of the drawings, the plate 22 on the permanent jaw 11 hasa serrated working face disposed at right angles to the length of thebar or shank; but the other plate 23 has its serrated working faceinclined to the axis of the shank or bar, whereby said plates 22 23 arewell adapted to grip cylindrical objects. The plate 23 is carried by theslidable jaw, so as to be adjustable therewith relatively to the otherplate and the permanent jaw, thus making the wrench applicable tocylindrical objects of different diameters.

The pipe-gripping plates may be removed from the permanent and slidablejaws in the manner hereinbefore described, and in lieu thereof thesmooth-faced plates 28 may be fitted to said jaws, the faces of saidplates 28 being parallel and at right angles to the shank or bar toenable the wrench to be used on nuts or other angular work. Each plate28 has a pair of lugs 29 and a rib 29', adapted to fit the grooves ofthe jaw to which it is applied, and the bolts 27 may be used inconnection with these plates 28 to hold the same firmly in place on thejaws.

It is well known to those skilled in the art that it frequently becomesnecessary to use the wrench in places where the side jaws cannot beoperated to good advantage, and to overcome this difficulty I haveprovided the attachment shown by Figs. 1 to 5, inclusive, of thedrawings. This attachment is applied to the shank and permanentjaw ofthe wrench, so as to extend from the samein the direction of the lengthof the shank, and when this attachment is used the slidablejaw 17, itssleeve or nut, and the gripping-plates are all removed and omitted. Theattachment has a fixed jaw 30, which is provided at one end with theparallel plates 31, having the bolthole 32, and this jaw is fitted tothe end portion of the shank or bar for the plates to embrace the latterand for the bolt-hole 32 to register with the bolt-hole 13 in said shankor bar. A bolt 32' passes through the coincident holes 32 13 in the jawand the bar or shank, respectively, said bolt having a head and a eeasenut similar to the bolt 27. This bolt 32 is adapted to take the strainwhich is exerted on the jaw in the use of the attachment; but to preventthe fixed jaw from having movement on the shank or bar l employ thespringlatch 33, which is attached to one ofthe plates of said fixed jaw,said latch having a nib or pin 34, adapted to pass through a hole 35 inthe plate and to enter the latch-hole 14in the shank. The attachment isalso provided with an adjustable and reversible jaw 36, which isprovided with an angular foot 37, the latter having a slot 38,withinwhich is a rib 38. The slotted foot of this jaw 36 is fitted on thepermanent jaw 11 for the tongue 38' to enter the groove 16 in said jaw11, and this jaw 36 is adjustable with relation to the other jaw 30 ofthe attachment. A guide-bar 39 projects outwardly from the fiXedj-aw 30,and it enters an aperture 40 in the jaw 36, said bar assisting thepermanent jaw 11 in keeping the jaw 36 parallel to the other jaw 30. Theadjustment of the jaw 36 is effected by an adjusting-screw 41, providedwith a head 42 and working in a threaded opening 43 of the jaw 36, saidadjusting-screw being loosely mounted in the jaw 30.

It is evident that the attachment may be easily applied to and removedfrom the shank and its permanent jaw and that the movable jaw of saidattachment may be adj usted with relation to the fixed jaw by rotatingthe adjusting-screw 41. The guide-bar 39 ofthe attachment lies somedistance within the outeil ends of the jaws 30 36 of the attachment, sothat the work may be fitted between said ends of the jaws.

The handle-bar 44 (shown by Fig. 11 of the drawings) may be used inconnection with the wrench bar or shank to apply greater leverage to theimplement, particularly when the attachment is used. This handle-bar isICO provided with a central socket 45 and with a socket 46 near one end,into either of which sockets may be fitted the end portion of a wrenchbar orshank. A latch 47 is mounted on the handle-bar, near the middlethereof, said latch having a pin 48, adapted to pass through an aperturein one side of the socketed part 45 of said bar for its pin to enteranopening 49 in the end portion of the Wrench bar or shank. The latchholds the handlebar firmly in place on the wrench-bar; but it may beretracted from engagement with said wrench-bar for the purpose of easilyremoving the handle-bar.

The movable jaw 36 of the attachment may be detached from the permanentwrench-jaw and reversed thereon, so as to vary the space between itselfand the fixed jaw to adapt the attachment to articles of differentsizes.

Changes within the scope of the appended claims may be made in the formand proportion of some of the parts while their essential features areretained and the spiritof the invention is embodied. Hence I do not de-IIO sire to be limited to the precise form of all the parts asshown,reserving the right to vary therefrom.

Having thus described my invention, what I claim as new isl. Thecombination with a wrench having a permanent jaw, of an attachmentremovably applied to said wrench and jaw to extend outwardly therefromand comprising a pair of jaws arranged in adjustable relation,substantially as described.

2. The combination with a Wrench having a permanent jaw, of anattachment removably applied thereto and comprising a stationary jaw onthe wrench bar or shank, a movable jaw slidable on the permanentwrench-jaw, and means for adjusting said movable jaw with relation tothe xed jaw, substantially as described.

3. The combination with a wrench having a permanent jaw, of anattachment removably applied thereto and comprising a fixed jaw mountedon the Wrench bar or shank, a movable jaw having an angular foot andapplied reversibly to the permanent wrenchjaw, and means for adjustingthe movable jaw with relation to the fixed jaw, substantially asdescribed.

4c. The combination with a wrench having a permanent jaw, of anattachment comprising a fixed jaw fitted removably to the wrench bar orshank, a removable bolt passing through said fixed jaw and thewrench-bar, a latch carried by the fixed jaw andgengaging with saidwrench-bar, a removable jaw fitted slidably on the permanent wrench-jaw,and means for adjusting said movable jaw with relation to the xed jaw,substantially as described.

5. The combination with a wrench having a permanent jaw, of anattachment comprising a fixed jaw mounted on the wrench bar or shank, amovable jaw slidably fitted on the permanent wrench-j aw, a guide-barattached to one jaw and fitting slidably in the other jaw, and a screwmounted in the fixed jaw and having threaded engagement with the movablejaw, substantially as described.

6. In a Wrench, a shank or bar provided at one end with a permanent jawdisposed at right angles to the axis of the shank, said jaw having alongitudinal groove in its under face and the transverse grooves in itsside faces, whereby the shank and jaw are adapted for use in connectionwith an attachment or with interchangeable gripping-jaws, as set forth.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

ROBERT JOHN STROUD.

Witnesses:

W. G. MAHAFFY, ALEX. H. SKENE.

